PURPOSE: To assort and ensure a desired quantity and type of objects even if unexpected situation occurs after reading the objects by bar codes.

CONSTITUTION: An assorting device for conveyance device is provided with a first object passing detection optical sensor 16 which detects passing condition of an object on a conveyor unit 2, an above passing judging means which judges based on signals from the first object passing detection optical sensor 16, and an actuator operation judging means which judges on command or off command. It is further provided with an actuator 8 for controlling posture which tilts the conveyor unit 2 based on the on command from the actuator operation judging means, a second object passing detection optical sensor which detects passing completion condition of object, a below passing judging means which judges that operation is usually done when an object moves on the conveyor unit 2, a full detection optical sensor which detects object full loading condition, and a take-out judging means which judges that an object pushing out pusher 19 is operated.